Exercise bicycle



FIG. 1 is a front, right, and top perspective view of an exercisebicycle, showing our design.

FIG. 2 is a rear, left, and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a partial enlarged view of an area labeled 9 in FIG. 1comprising a foot pedal.

FIG. 10 is a partial enlarged view of an area labeled 10 in FIG. 1comprising an adjustable knob.

FIG. 11 is a partial enlarged view of an area labeled 11 in FIG. 1comprising a foot pedal; and,

FIG. 12 is a partial enlarged view of an area labeled 12 in FIG. 2comprising a foot pedal.

The broken lines shown in the drawings are included for the purpose ofillustrating portions of the exercise bicycle that form no part of theclaimed design.

In addition, the dot-dash broken lines in the drawings illustrate anenlarged portion of the design.

CLAIM The ornamental design for an exercise bicycle, as shown anddescribed.